var funPlaceholder = function(element) {
	if ($.browser.msie && ($.browser.version == "9.0")) {
	    //检测是否需要模拟placeholder
	    var placeholder = '';
	    if (element && !("placeholder" in document.createElement("input")) && (placeholder = element.getAttribute("placeholder"))) {
	        //当前文本控件是否有id, 没有则创建
	        var idLabel = element.id ;
	        if (!idLabel) {
	            idLabel = "placeholder_" + new Date().getTime();
	            element.id = idLabel;
	        }
	
	        //创建label元素
	        var eleLabel = document.createElement("label");
	        eleLabel.htmlFor = idLabel;
	        eleLabel.style.position = "absolute";
	        //根据文本框实际尺寸修改这里的margin值
	        eleLabel.style.margin = "2px 0 0 3px";
	        eleLabel.style.color = "graytext";
	        eleLabel.style.cursor = "text";
	        //插入创建的label元素节点
	        element.parentNode.insertBefore(eleLabel, element);
	        //事件
	        element.onfocus = function() {
	            eleLabel.innerHTML = "";
	        };
	        element.onblur = function() {
	            if (this.value === "") {
	                eleLabel.innerHTML = placeholder;  
	            }
	            //checkValue(this);
	        };
	
	        //样式初始化
	        if (element.value === "") {
	            eleLabel.innerHTML = placeholder;  
	        }
	    }  
	}
};